Black dots -> compressions (C,c,+,U,u)
White dots -> dilatations (D,d,-)
Green dot  -> T-axis
Red dot    -> P-axis

  sta  chan net loc pol a/m   azi   dist author    irsta
  YUK3  HHZ  CN  --  -   a   1.73   0.61 ISC       YUK3 
  YUK2  HHZ  CN  --  +   a 344.77   0.62 ISC       YUK2 
  YUK6  HHZ  CN  --  +   a 101.33   1.06 ISC       YUK6 
  MESA  BHZ  AK  --  -   a 216.38   1.22 ISC       MESA 
  YUK7  HHZ  CN  --  +   a 117.95   1.32 ISC       YUK7 
  HYT   HHZ  CN  --  +   a 101.97   1.50 ISC       HYT  
  PNL   BHZ  AK  --  -   a 159.66   1.60 ISC       PNL  
  DIV   BHZ  AK  --  +   a 271.43   2.56 ISC       DIV  
  WHY   HHZ  CN  --  +   a  98.08   2.79 ISC       WHY  
  DAWY  HHZ  CN  --  -   a   9.47   2.95 ISC       DAWY 
  BESE  BHZ  AK  --  -   a 129.92   3.85 ISC       BESE 
  COLD  BHZ  AK  --  -   a 329.37   7.40 ISC       COLD 

sta    - Station code (FDSN)
chan   - channel code
net    - Network code (FDSN)
loc    - Location code (FDSN)
pol    - Polarity
a/m    - Automatic or manual pick
azi    - Event to station azimuth (in degrees)
dist   - Event to station distance (in degrees)
author - Author of the polarity
irsta  - International registry station code